(A) Planting pits shall be one and one-half times as deep and three times as wide as the root ball. Planting procedures should follow the most current Northern Illinois Tree Specification. Native soil should be used for backfill whenever possible.
(B) Trees and shrubs located in a planting bed shall be mulched with a minimum of three inches of shredded hardwood bark, wood chips or other organic mulch. All flower and groundcover beds shall be mulched with a minimum one and one-half to two inch depth shredded hardwood bark, wood chips or other organic mulch.
(C) The lower trunk of new trees shall be wrapped with burlap or paper to prevent evaporation and sunscald. The wrapping should remain on the tree for at least one year. Newly planted trees should be sprayed with an antidesiccant prior to site delivery and immediately after installation to prevent excessive moisture loss.
(D) Soil used in planter boxes, urban tree grates or similar areas should have a soil composition of 45%-77% silt, 0%-25% clay, 25%-33% sand, a soil acidity of pH 6.0 to 7.0, no more than 3% to 5% organic material, and a minimum depth of three feet.
(E) Local ecotypes should be preserved. Therefore, all native seed and plant stock should be obtained from sources within a 150-mile radius of the village. Vendors from beyond that radius may supply the native seed and/or plants, but they must demonstrate the materials come from local genetic stock.
(F) Planting of garlic mustard, reed canarygrass, purple loosestrife, common reed, and buckthorn is prohibited, as is installation of any noxious weed as defined by the Illinois Administrative Code or by the village.
(Ord. 1565, passed 4-1-96; Am. Ord. 2341, passed 12-18-06) Penalty, see § 158.99